Full Papers.- Spago4Q and the QEST nD Model: An Open Source Solution for Software Performance Measurement.- An Investigation of the Users' Perception of OSS Quality.- Engaging without Over-Powering: A Case Study of a FLOSS Project.- The Meso-level Structure of F/OSS Collaboration Network: Local Communities and Their Innovativeness.- To Patent or Not to Patent: A Pilot Experiment on Incentives to Copyright in a Sequential Innovation Setting.- Voting for Bugs in Firefox: A Voice for Mom and Dad?.- The Nagios Community: An Extended Quantitative Analysis.- Collaborative Development for the XO Laptop: CODEX 2.- Risks and Risk Mitigation in Open Source Software Adoption: Bridging the Gap between Literature and Practice.- Usability Innovations in OSS Development - Examining User Innovations in an OSS Usability Discussion Forum.- Governance in Open Source Software Development Projects: A Comparative Multi-level Analysis.- Evaluating the Readiness of Proprietary Software for Open Source Development.- Where and When Can Open Source Thrive? Towards a Theory of Robust Performance.- How Open Are Local Government Documents in Sweden? A Case for Open Standards.- Bug Localization Using Revision Log Analysis and Open Bug Repository Text Categorization.- T-DOC: A Tool for the Automatic Generation of Testing Documentation for OSS Products.- Open Source Introducing Policy and Promotion of Regional Industries in Japan.- Comparing OpenBRR, QSOS, and OMM Assessment Models.- Joining and Socialization in Open Source Women's Groups: An Exploratory Study of KDE-Women.- Download Patterns and Releases in Open Source Software Projects: A Perfect Symbiosis?.- Modelling Failures Occurrences of Open Source Software with Reliability Growth.- A Field Study on the Barriers in the Assimilation of Open Source Server Software.- Reclassifying Success and Tragedy in FLOSS Projects.- Short Papers.- Three Strategies for Open Source Deployment: Substitution, Innovation, and Knowledge Reuse.- Coordination Implications of Software Coupling in Open Source Projects.- Industry Regulation through Open Source Software: A Strategic Ownership Proposal.- Proposal for Solving Incompatibility Problems between Open-Source and Proprietary Web Browsers.- FLOSS Communities: Analyzing Evolvability and Robustness from an Industrial Perspective.- BULB: Onion-Based Measuring of OSS Communities.- A Network of FLOSS Competence Centres.- Profiling F/OSS Adoption Modes: An Interpretive Approach.- Introducing Automated Unit Testing into Open Source Projects.- A Case Study on the Transformation from Proprietary to Open Source Software.- High-Level Debugging Facilities and Interfaces: Design and Developement of a Debug-Oriented I.D.E..- To Rule and Be Ruled: Governance and Participation in FOSS Projects.- A Comparison Framework for Open Source Software Evaluation Methods.- An Exploratory Long-Term Open Source Activity Analysis: Implications from Empirical Findings on Activity Statistics.- Challenges for Mobile Middleware Platform: Issues for Embedded Open Source Software Integration.- Open Source Software Developer and Project Networks.- Warehousing and Studying Open Source Versioning Metadata.- Workshops.- Workshop - Open Source Software for Computer Games and Virtual Worlds: Practice and Future.- WoPDaSD 2010: 5th Workshop on Public Data about Software Development.- Second International Workshop on Building Sustainable Open Source Communities OSCOMM 2010.- Open Source Policy and Promotion of IT Industries in East Asia.- OSS 2010 Doctoral Consortium (OSS2010DC).- Panels.- Student Participation in OSS Projects.- Open Source Software/Systems in Humanitarian Applications (H-FOSS).- The FOSS 2010 Community Report.- The Present and Future of FLOSS Data Archives.